View Single Post
Old 04-22-2018, 07:56 AM   #16
Dan Fahey
VIP Member
 
Dan Fahey's Avatar
 
Join Date: Oct 2008
Posts: 2,114
Likes: 1,078
Liked 180 Times in 110 Posts
Default Re: 12 Bolt vs 10 Bolt Rear

Quote:
Originally Posted by Mark Yacavone View Post
Not correct.
The Impala SS may have all come with the 8.5.


Pinion bearings and flange are different, for one thing.
8.5 and 12 bolt take different side shims.
The 91-96 B-boys are the Caprices, Impalas, Roadmaster and Caddy’s.
All were 10 bolt 8.5 rear

Camaro/FB all came with smaller 7.2 rear.
They can surprisingly survive with a good bit of power too..!

About a $1k less to beef up a 10 bolt than installing a prepared 12 bolt unit.
They make them to fit our B-body.
Interesting being the same suspension configurations as the early Chevelles, GTO, Cutlass, GTX.

D
Dan Fahey is offline   Reply With Quote